Portable CT PT Comprehensive characteristic analyzer with Aluminum alloy trolley box
Host of GDVA-405 Automatic CT PT Analyzer Aluminum alloy trolley box for GDVA-405 CT PT Analyzer
GDVA-405 Portable CT PT Comprehensive characteristic analyzer is mainly used for field testing of Protection and Metering CT and PT. This current transformer tester of test items mainly include excitation characteristic, turns ratio, polarity,, ratio & phase error, 5% and 10% error curves, secondary winding resistance check, Automatic nameplate inference.
Adopting LCD touch screen, supporting to use USB flash disk or connect with computer to download data, with simple and convenient operation.
Equipped with with Aluminum alloy trolley box,easy to transport and move.
Technical Data of GDVA-405 Automatic CT PT Analyzer
| CT Ratio Accuracy (Typical:0.02%) |
| Ratio 1~2000 |
<0.05%(guaranteed) |
| Ratio 2000~5000 |
<0.1%(guaranteed) |
| Ratio 5000~35000 |
<0.2%(guaranteed) |
| PT Ratio Accuracy(Typical:0.05%) |
| Ratio 1-10000 |
<0.1% (guaranteed) |
| Ratio 10000-35000 |
<0.2% (guaranteed) |
| Phase measurement |
| error |
±2min |
| resolution |
0.01min |
| Winding resistance |
| Range |
0-8kΩ (automatically change range in2ohm/20ohm/80ohm/800ohm/8kohm) |
| Error |
< 0.2%RDG+0.02%FS; Maximum resolution : 0.1mΩ |
| Current measurement |
| Range |
0-10A (automatically change range in 0.1/0.4/2/10A) |
| Error |
<±0.1%+0.01%FS |
| Voltage measurement |
| Range |
0-200V (automatically change range in 1V/10V/70V/200V) |
| Error |
< ±0.1%+0.01%FS |
| CT Secondary burden |
| Range |
0-160ohm (automatically change range in 2ohm/20ohm/80ohm/160ohm) |
| Error |
<0.2%RDG+0.02%FS; Maximum resolution : 0.001ohm |
| PT Secondary burden |
| Range |
0-80kohm (automatically change range in 800ohm/8kohm/80kohm) |
| Error |
<0.2%RDG+0.02%FS; Maximum resolution : 0.1ohm |
| Memory capacity |
| GDVA-405 |
>1000 groups test results |
| Upload to computer |
Without limit |
| |
1) CT ratio and phase measurement with consideration of nominal and connected secondary burden; CT ratio up to 10000:1
2) Knee-point voltage from 1 V up to 60 kV can be Measured
3) Currents from 1% up to 400 % of the rated value
4) Determination of ALF/ALFi and FS/FSi, Ts,Kr and composite error for nominal and connected burden
5) CT winding resistance measurement
6) CT excitation curve (unsaturated and saturated)
7) Saturation characteristic recording
8) Direct comparison of excitation curve to a reference curve
9) CT phase and polarity check
10) Secondary burden measurement
11) Automatic demagnetization of the CT after the test
12) Short commissioning times (duration of the automatic test < 1min)
13) High level of safety using patented variable frequency method (max. 180 V)
14) "Nameplate guess" function for CT/PT with unknown data
15) PC control interface(Optional)
16) Quick Test: Auto testing interface
17)Simulation of measured data with different burdens and currents
18) Automatic assessment according to IEC 60044-1, IEC60044-2,IEC60044-5,IEC 60044-6, IEC61869-2, IEEE Std C57.13-2016
19) Automatic assessment for accuracy class > 0.1
20) Measurement of transient behavior of TPS, TPX, TPY and TPZ type CTs
21) PT ratio, polarity,error and excitation curve according to IEC60044-2.
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